MIR4 events and world boss timetable
Choose your game region before planning an event. Regional schedule times use the server clock: ASIA UTC+8, INMENA UTC+6, EU UTC+2, NA UTC−4 and SA UTC−3. Rows explicitly marked UTC are global instants instead.
Converting an event time
For an EU event at 23:00, subtract two hours to get 21:00 UTC. A device at UTC−3 displays 18:00. Conversions can change the calendar day. Read the timing basis for each row rather than applying one offset to every event.
| Event | Days | Times | Timing basis | Location | Notes |
|---|---|---|---|---|---|
| Krukan | Monday | 22:00 | Selected region server time | World Boss Sanctuary | Weekly World Boss. Max 450 capacity, fast travel disabled. |
| Nerkan | Tuesday | 23:00 | Selected region server time | World Boss Sanctuary | Seals break at 19:00, boss becomes vulnerable at 23:00. |
| Helbar | Wednesday | 23:00 | Selected region server time | World Boss Sanctuary | Weekly World Boss. High value legendary materials. |
| Turkan | Thursday | 23:00 | Selected region server time | World Boss Sanctuary | Seals break at 19:00, boss becomes vulnerable at 23:00. |
| Utukan | Friday | 22:00 | Selected region server time | World Boss Sanctuary | Weekly World Boss. Max 450 capacity, fast travel disabled. |
| Rallying of Void | Thursday | 23:00 | Selected region server time | Mirage Ship | Mirage Ship void event. Defeat void invaders. |
| Labyrinth Bosses | Daily | 10:00, 20:00 | Selected region server time | Bicheon / Snake / Redmoon Labyrinths | Twice daily labyrinth boss spawns. |
| Hidden Valley Bosses | Daily | 12:00, 22:00 | Selected region server time | Hidden Valleys 4F | Twice daily field valley boss spawns. |
| Redmoon Purgatory | Daily | 00:00, 06:00, 12:00, 18:00 | Selected region server time | Redmoon Valley 4F | Special world boss event every 6 hours. |
| Hidden Valley Capture | Wednesday | 22:00 | Selected region server time | Bicheon / Snake / Redmoon Valleys | Clan war for control of Darksteel production in Hidden Valleys. |
| Bicheon Heist | Friday | 22:00 | Selected region server time | Bicheon Castle Vault | Heist event where players compete for royal treasury darksteel. |
| Domination Server | Daily | 09:00, 15:00, 21:00 | Selected region server time | Domination Area | Cross-server PvP battlefield opens daily for elite clashes (4h sessions). |
| Expedition | Daily | 21:00 | Selected region server time | Expedition Realms | Travel to foreign servers daily to hunt, gather and wage skirmishes (4h). |
| Server Reset Time | Daily | 16:00 | UTC | Worldwide (16:00 UTC) | Daily mission reset, tickets, shop cooldowns, and attendance (16:00 UTC). |
| Attack of the Living Wraiths | Thursday | 22:00 | Selected region server time | Bicheon Castle | Repel wave of evil spirits attacking the castle gates. |
| Clan Expedition | Saturday | 00:00 | Selected region server time | Clan Domain | Clan-wide raid unlocked during Saturday. |
| Clan Challenge | Sunday | 00:00 | Selected region server time | Clan Domain | Weekly multi-stage boss trials for clan rewards during Sunday. |
| Red Top Boss | Daily | 04:00, 10:00, 16:00, 22:00 | Selected region server time | Secret Peak 7F-9F | Spawns every 6 hours in Secret Peak upper floors. |
| Red Bottom Boss | Daily | 01:00, 07:00, 13:00, 19:00 | Selected region server time | Secret Peak 1F-6F | Spawns every 6 hours in Secret Peak lower floors. |
| Leader's Chamber III | Daily | 00:00, 03:00, 06:00, 09:00, 12:00, 15:00, 18:00, 21:00 | Selected region server time | Magic Square | Elite chamber in Magic Square every 3 hours. |
| Fury Chamber | Daily | 01:30, 04:30, 07:30, 10:30, 13:30, 16:30, 19:30, 22:30 | UTC | Magic Square | Elite boss chamber in Magic Square (1h session). |
| Frenzy Chamber | Daily | 00:00, 03:00, 06:00, 09:00, 12:00, 15:00, 18:00, 21:00 | UTC | Magic Square | Elite frenzy boss chamber in Magic Square (1h session). |
| Battlefield — 1st Boss Rotation | Daily | 09:00, 15:00, 21:00 | Selected region server time | Domination Battlefield | Spawns immediately as Domination opens (09:00, 15:00, 21:00). 30-minute cooldown from spawn time. |
| Battlefield — 2nd Boss Rotation | Daily | 10:00, 16:00, 22:00 | Selected region server time | Domination Battlefield | Spawns exactly 1 hour after Domination begins (10:00, 16:00, 22:00). 30-minute cooldown from spawn time. |
| Battlefield — 3rd Rotation (Random Spawn) | Daily | 09:00, 15:00, 21:00 | Selected region server time | Domination Battlefield | Has a random respawn: can spawn at any time throughout the 4-hour window. 30-minute cooldown after spawn. |
| Tower — Dark Specters | Daily | 10:00, 12:00, 16:00, 18:00, 22:00, 00:00 | Selected region server time | Domination Tower | Appears twice per session: 1h after start (10:00/16:00/22:00) and 3h after start (12:00/18:00/00:00). Each event lasts 30 minutes. |
| Tower — Juja (Main Boss) | Daily | 11:00, 17:00, 23:00 | Selected region server time | Domination Tower | The most important Tower boss spawns exactly 2 hours after Domination begins (11:00, 17:00, 23:00). |
| Tower — Secret Chambers | Daily | 09:00, 15:00, 21:00 | Selected region server time | Domination Tower | Boss spawns 15 min after entry. ⚠️ A player must stay inside the room for the timer to tick! |
| Tower — Minerals, Herbs, Energy & Darksteel | Daily | 09:00, 15:00, 21:00 | Selected region server time | Domination Tower | Golden minerals, herbs, energy, and darksteel respawn every 10 minutes inside the Tower. Track individual 10m timers below. |
| Domination Labyrinth | Daily | 10:00, 21:00 | Selected region server time | Domination Labyrinth | Appears only in Session 1 at 10:00 (1h after start) and Session 3 at 21:00 (at opening). |
| Domination Valley — Mon / Thu / Sun (11:00) | Sunday, Monday, Thursday | 11:00 | Selected region server time | Domination Valley | Valley boss spawns at 11:00 (Session 1) on Mondays, Thursdays, and Sundays. |
| Domination Valley — Tue / Fri (17:00) | Tuesday, Friday | 17:00 | Selected region server time | Domination Valley | Valley boss spawns at 17:00 (Session 2) on Tuesdays and Fridays. |
| Domination Valley — Wed / Sat (23:00) | Wednesday, Saturday | 23:00 | Selected region server time | Domination Valley | Valley boss spawns at 23:00 (Session 3) on Wednesdays and Saturdays. |
Schedule questions
Which clock is used?
Event badges and day labels use your device’s local time. Choose the game region to convert its schedule. Times written inside event descriptions remain in server time; UTC-based events are labeled separately. There is no clock selector or region-sharing URL.
Does LIVE confirm a boss is alive?
No. LIVE and SPAWNED are calculated from scheduled times and configured display windows. The tracker does not query the game server. Check the game for kills, maintenance and schedule changes.
How do reminders work?
Choose the lead time for event alarms and enable the bell on the event. Free accounts have an alarm limit. Allow sound through a click, check volume and keep the page open. Background tabs and suspended devices can delay or miss an alarm; there is no guaranteed delivery time.
What is saved?
The browser stores region, language, selected tab, alarm preferences and checklist progress. Clearing site data removes local settings. Quick gathering timers belong to the browser session. Do not assume all preferences are synchronized across devices.
Where does the schedule come from?
The project dataset references community schedules. It has not been independently verified against every current game notice. Consult Sources and limitations and report discrepancies with region, date and a screenshot.
Sources and corrections
This reference is generated from the same community datasets and documented behaviour as the tracker. It is not an independent verification of current game rules. Consult the official MIR4 notices and the game for changes. Read sources and limitations and report discrepancies with your region, date and supporting evidence.